Where to find energy?

Quantity of a solar energy, which one fall on a roof of 9-floors house and its comparison with quantity of energy, which one are used by the inhabitants of this house.

The area of a house's roof, m2	Quantity of energy of the sun, which one falls on 1 sq. m of a soil during one year, kWatt•hour	Quantity of energy of the sun, which one falls on a roof of a house during one year, kWatt•hour	Quantity of flats in the house	Living space, м2
1737	1125	1954125	216	6480

Kinds of utilized energy	Quantity of utilized energy during one year, kWatt•hour
The electricity	155520
Gas	315360
Heating	1399680
Warm water	94608
Total:	1965168

For calculation it is accepted:

1. Quantity of the utilized electric power is 60 kWatt•hour per one month for each flat.

2. Duration of daily usage of a gas stove 2 hours per day for each flat.

3. The power of heat losses during 180 days of a heating season is adopted for calculation 0,05 kWatt / м2.

4. Quantity of warm water is 40 liters on one flat for one day.

Conclusion.

Quantity of energy, which one falls on a roof of 9-floors house approximately equals quantities of energy, which one is consumed by the inhabitants of this house. For today there are technics, which one allow to use up to 90 % of this energy.

Quantity of energy, which falls on the automobile, during one year at a latitude of Poltava sity, and comparison of this energy with quantity of energy, which receives from gasoline at exploitation of the automobile.

The area of a projection of the automobile the VAZ - 21099, м2	Quantity of energy of the sun, which falls on 1 m2 of a soil during one year, kWatt•hour	Heating value of gasoline, kWatt•hour/L	Quantity of energy, which falls on the automobile during one year, kWatt•hour	Equivalent quantity of gasoline, L
6,8	1125	10,2	7663,6	749,7

Conclusions

1. In wilderness areas, where the energy of the sun falls more, equivalent quantity of gasoline can exceed 2000 liters. On such quantity of gasoline the automobile can drive almost 40000 km.

2. These calculations demonstrate, that it is not necessary at a solution of a problem usage of energy of the sun to use new territories, as it is usually done at building electric power stations, hydro- or atomic power stations.

3. Usage only parts of energy of the sun, which falls on roofs of apartment houses, of industrial facilities or automobiles will allow completely to meet the requirements of mankind in energy.